x/2+3=13 - solution

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Solution for x/2+3=13 equation:

x in (-oo:+oo)

x/2+3 = 13 // - 13

x/2-13+3 = 0

1/2*x-10 = 0 // + 10

1/2*x = 10 // : 1/2

x = 10/1/2

x = 20

x = 20

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